Currently the imagePullSecrets are hardcoded to use a common one for all components:

      imagePullSecrets:
      - name: "{{ include "common.namespace" . }}-docker-registry-key" 

That means a common secret with name "onap-docker-registry-key" has to exist

Instead there must be the option to set it per component, e.g. in "global"

global:
  ## E.g.
  ## imagePullSecrets:
  ##   - myRegistryKeySecretName
  ##
  imagePullSecrets: []